Home / 9,917.10-13,685.74-5,440.77

Finding the Fourth Proportional to 9,917.10, 13,685.74 and 5,440.77

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Solution

The fourth proportional to 9,917.10, 13,685.74 and 5,440.77 is: 7,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.10 : 13,685.74 = 5,440.77 : x
  2. Step 2: Convert to fraction form
    9,917.10/13,685.74 = 5,440.77/x
  3. Step 3: Cross multiply
    9,917.10x = 13,685.74 × 5,440.77
  4. Step 4: Simplify right side
    9,917.10x = 74,460,950.02
  5. Step 5: Solve for x
    x = 74,460,950.02/9,917.10
  6. Step 6: Final answer
    x = 7,508.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.